Windmill.



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s. s. HARPERDEOD. E. L HARPER, EXEOUTRIX.

I WINDMILL. APPLICATION FILED JULY 15, 1913.

Patented May 12,1914.

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86mm i wan ventor 44 Maul W45; Attorfgsi S. S. HARPER, DEGD. E L HARPER, nxnou'rmx WINDMILL. APPLIOATION FILED JULY 15, 1913.

Patented May 12, 1914.

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E. L. HARPER, EXBOUTRIX. WINDMILL. APPLICATION FILED JULY 15, 1913.

1,096,033, Patented May 12,1914.

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UNITED STATES PATENT oFFioE.

SAMUEL S. HARPER, DECEASED, LATE OF NEJV YORK, N. Y., BY ELEANOR L. HARPER, EXECUTRIX, OF NEW YORK, N. Y., ASSIG-NOR TO AIR TURBINE COMPANY OF AMERICA, 0]? JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

WINDMILL.

Specification of Letters Patent.

Application filed July 15, 1913.

Patented May 12, 1914.

Serial No. 779,078.

To all whom it may concern:

Be it known that I, ELEANOR L. HARPER, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of New York, executrix of the last will and testament of SAMUEL S. HAR- PER, deceased, late of the borough of Manhattan, city, county, and State of New York, do hereby declare the following to be a full, clear, and exact description of the invention of the said SAMUEL S. HARPER of an Improvement in Windmills, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to wind mills of the general type disclosed in the application for patent filed by Samuel S. Harper February 23, 1909, Serial No. 479,503, and in an application executed of even date herewith.

The objects in view are to support the floating ring independently of the vanes so that the latter may be made lighter and the weight of the ring will be removed from their bearings.

A further object is to produce a support for the floating ring so that it will move in the same horizontal plane irrespective of the position that it bears in relation to the shaft.

A still further object is to produce means for taking up and adjusting for wear.

These and further objects will more fully appear from the following specification and accompanying drawings, considered together or separately.

In the drawings, Figure 1 is a plan view of a portion of a wind mill embodying the invention. Fig. 2 is a section taken on the line a;a of Fig. 1. Fig. 3 is a detail view of the floating ring and its supports looking at it in one direction, the ring being shown in section. Fig. 4 is a similar view of the ring, the view being taken at right angles to'Fig. 3. Fig. 5 is a section in detail showing one of the yokes and bearings; and Fig. 6 is a plan view of a modification.

Referring to the drawings, the wind mill is supported by the main shaft 1, which is vertical, as shown. This shaftcarries the upper rim 2 and lower rim 3 by means of i the spokes 4:. The vanes 5 turn on bearings 6 in the upper and lower rims and are connected to the floatlng ring 7, by brackets 7.

This portion of the structure is the same as that illustrated in the co-pending application for patent, specification of which is executed on even date herewith, before-referred to, except that the brackets 7 do not support the weight of the floating ring and therefore need not be ,so strong as the brackets shown in the co-pending application above referred to. The floating ring 7 instead of being supported by the vanes, as is disclosed in the co-pending application for patent above referred to, is supported by means independent of the vanes. The particular means chosen for illustration, and which form a part of this invention,su1 oport the floating ring so that it moves in the same horizontal plane irrespective of its position in relation to the shaft.

The particular means for'supporting the ring are as follows: The ring is supported by a link rod 8 from above, and a link rod 9 below. As shown in the embodiment chosen for illustration, the link rod 8 is on the side of the floating ring nearer the shaft, but this arrangement is chosen solely for illustration, and need not be followed. The two ends of the link rods are connected together by a saddle 10. The connections between the ends of the saddle and the ends of the rods, and between the intermediate part of the saddle and the floating ring, as shown in Figs. 3 and 4, is made by means of pivots 11. These pivots, the details of which are best shown in Fig. 5, enter cups 12, each of which has an adjustable center 13, so that the parts may be adjusted when wear occurs. The pivots 11 are provided with nuts 14 for adjusting the position of the points.

The connection between "the floating ring and the saddle, between the two ends of the rods and the saddle and between the at taching ends of the rods and their supports is by means of yokes 15. Each yoke consists of rods 16 and. bars 17. For the purpose of adjusting the length of the rods 8 and 9 they are provided with suitable adjusting means, such for example the turn buckets 18. The upper link rod 8 is supported upon a beam 19, and the lower link rod 9 is supported upon a beam 20. These beams are shown as attached to the upper and lower rims 2 and 3 by means of the clips 21. It will be noted that the upper beam 19 is longer than the lower beam 20, so that the link rods are supported in the proper position. The connection between the lower link rod 9 and the saddle and also between this rod and the beam 20 is not by means of yokes, but at the upper end of the rod the pivot 11 is directly attached and at the lower end of the rod the cap 12 is directly attached, yokes not being necessary in this situation. In order, however, to support the upper end of the upper link rod and to connect the saddle 10 to the lower end of the rod and also to connect the floating ring 7 with the saddle, it is necessary to employ the yokes 15. All of the parts are connected together as shown, and'the various pivots lie within the cups and are held in position by gravity. This allows the mill to bevery easily assembled. It is to be"understood that as many elements as are necessary are to be used, they being superposed one above another.

The operation of the device as to the connection between the floating ring and the vanes is the same as that disclosed in the copending application for patent Serial No. M9503, before referred to. The operation of the supports forthe floating ring and the movement of that ring itself, due to its changing relation in respect to the shaft, caused by the pressure of the wind upon the vanes, is as follows:

Referring to Figs. 3 and 4, it will be seen that the solid lines represent the position of the parts when the floating ring is concentric to the shaft. The dotted line position illustrates the ring when moved to the greatest point of eccentricity which is limited by the size of the floating ring, the lengths of the brackets 7 and stops for the rings. These stops are preferably carried by the rims and are in such positions as to limit the swing of the vanes. Such stops are shown in patent of Samuel S. Harper, No. 1,011,618, dated December 12, 1911. When moved to this position, the saddle 10 will cease to be horizontal, as shown in Fig. 3, but nevertheless the support for the floating ring will be on the same plane. It will be seen from an inspection of Fig. 4, that the yokes oscillate and lie at an incline, but this is possible owing to the shape of the cavity in the cup 12 and the angle of the pointed end of the pivot 11. These pivots,

therefore, permit the rods 8 and 9 to assume whatever angle is necessary, and at the same time support the parts with the minimum amount of friction. Three sets of supports are shown for the floating ring, but it is to be understood that this number is chosen solely for illustration and may be varied, as desired. The floating ring is provided with spokes 22, which keep it from being distorted.

In Fig. 6 is shown a modification in which the floating ring 7 is of greater diameter than the mill, and is carried on the outside thereof by means of yokes 15, axles 10, link rods 8 and 9, the link rod 8 being suspended from a beam 19, which projects outwardly from the upper rim 2, as shown. The brackets 7 in Fig. 6 are shown as attached to the outside of the vanes instead of to the inside, as show in the other figures. In the modification are shown six sets of supports for the floating ring, but this number may be varied to suit different conditions, such as the size or weight of the ring. In the modified form of the device shown in Fig. 6,"the' ring may be of such strength as not to require'bracing, such as spokes.

In accordance with the provisions of the patent statutes, I have described the principle of the invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is merely illustrative, and that the invention may be carried out in other ways.

Having now described the invention of the said SAMUEL S. HARPER, What I claim as new, and desire to secure by Letters Patent, is

1. A wind mill havingavertical shaft, and rims supporting vanes which turn 'on vertical axes, a floating ring, and means for supporting the ring independently of the vanes, said means confining the movement of the ring to a horizontal plane.

2. A wind mill having a vertical shaft, and rims supporting vanes which turn 011 vertical axes, a floating ring, rods carried by the rims, a saddle connecting the rods, and a support for the floating ring carried by the saddles.

3. A wind mill having a vertical shaft, and rims supporting vanes which turn on vertical axes, a floating ring, rods carried by the rims, yokes on certain of the rods, a saddle connecting the rods and a support for the floating ring carried by the saddle.

4. A wind mill having a vertical shaft, and rims supporting vanes which turn on vertical axes, a floating ring,'rods carried by the rims, yokes on certain of the rods, a saddle connecting the rods, and a yoke connecting the floating ring and saddle.

5. A wind mill having a vertical shaft,

rims carried by the shaft, vanes supported I This specification signed and witnessed by the rims, said vanes turning on vertical this 30th day of April, 1913.

axes, a floating ring, connections betweeni ELEANOR L. HARPER, the vanes and ring, and means for support- Eaecatria 0f the last will and testament 0 ing the ring independently of the vanes said i Samuel S. H aaper, deceased.

means permitting movement of the ring but Witnesses: confining such movement to a horizontal GEORGE JARVIS THOMPSON, plane. NATHAN H. LORD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

